Re: Strange Connections Detected.

Your memory usage probably isn't as bad as you think. Linux likes to use unused memory as disk cache. This isn't a problem because if it's needed for something else like a running program wants memory, it just reduces the size of the cache again. In fact it's a good thing because otherwise all that memory would be wasted, completely unused.

When you look at the output of the command free, the top Mem: line shows memory usage including memory that's being used as disk cache. The free memory tends to get very small as more spare memory gets used towards disk caching. If you want to know how much memory is free if a program should want it, you should look at the second line, -/+ buffers/cache: which shows memory usage as though the disk caching wasn't happening.

Samba is a file and printer sharing program for sharing with windows servers. But it doesn't seem to be running on your machine (the ports aren't showing in your netstat output). What makes you think is is installed?

Re: Strange Connections Detected.

Originally Posted by The Cog

Your memory usage probably isn't as bad as you think. Linux likes to use unused memory as disk cache. This isn't a problem because if it's needed for something else like a running program wants memory, it just reduces the size of the cache again. In fact it's a good thing because otherwise all that memory would be wasted, completely unused.

When you look at the output of the command free, the top Mem: line shows memory usage including memory that's being used as disk cache. The free memory tends to get very small as more spare memory gets used towards disk caching. If you want to know how much memory is free if a program should want it, you should look at the second line, -/+ buffers/cache: which shows memory usage as though the disk caching wasn't happening.

Samba is a file and printer sharing program for sharing with windows servers. But it doesn't seem to be running on your machine (the ports aren't showing in your netstat output). What makes you think is is installed?

I understand how linux uses cache, but its a strange jump from around 1.7gb free space to 1.1gb of free space

Re: Strange Connections Detected.

I understand how linux uses cache, but its a strange jump from around 1.7gb free space to 1.1gb of free space

Well, I don't think that's at all strange. If anything reads anything on the disk, then those disk contents are retained in the cache in case they are wanted again. Anything reading the disk - check for updates reads the apt database, there is a file indexing utility that reads the entire directory structure occasionally, etc.

Re: Strange Connections Detected.

Well, I don't think that's at all strange. If anything reads anything on the disk, then those disk contents are retained in the cache in case they are wanted again. Anything reading the disk - check for updates reads the apt database, there is a file indexing utility that reads the entire directory structure occasionally, etc.